#!/usr/bin/env python
#-*- encoding:utf-8 -*-
#
#       Singleton Implementation
#
#       Kévin Gomez <geek63@gmail.com>
#
#       This program is free software; you can redistribute it and/or modify
#       it under the terms of the GNU General Public License as published by
#       the Free Software Foundation; either version 2 of the License, or
#       (at your option) any later version.
#
#       This program is distributed in the hope that it will be useful,
#       but WITHOUT ANY WARRANTY; without even the implied warranty of
#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#       GNU General Public License for more details.
#
#       You should have received a copy of the GNU General Public License
#       along with this program; if not, write to the Free Software
#       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#       MA 02110-1301, USA.


class Singleton:
    """ Singleton Implementation """

    _instance = None

    def __new__(cls, *args, **kw):
        """ Singleton """

        if cls._instance is None:
            cls._instance = object.__new__(cls, *args, **kw)

        return cls._instance
